Heavy Equipment Technicians maintain, repair, and overhaul heavy vehicles and industrial equipment, such as: 

• Internal combustion engines and components, both stationary and mobile. 
• Tracked equipment, commonly called crawler tractors. 
• Ground-engaging equipment and components, including rippers, ditchers, backhoes, trenchers, and similar equipment. 
• Towed earth-moving equipment, commonly called scrapers. 
• Self-propelled earth moving equipment, commonly called motor scrapers. 
• Rubber-tired equipment, commonly called tractors. 
• On-highway and off-highway motor vehicles, commonly called trucks. 
• Towed on-highway and off-highway vehicles, commonly called trailers. 

In general, Heavy Equipment Technicians are employed by specialized repair shops and organizations that own or lease heavy equipment used in the construction, mining, forestry, material handling, landscaping, land clearing, agriculture, and transportation industries. Heavy Equipment Technicians must interpret work orders and technical manuals, write service reports, keep equipment cleaned, lubricated, and maintained, diagnose faults or malfunctions, adjust equipment and repair or replace defective parts, components, or systems, test repaired equipment for proper performance, and ensure that the work done meets manufacturers’ specifications and legislated regulations. 

Heavy-duty equipment mechanics perform some or all of the following duties: